03456 ZIP Code — Marlow, NH

Cheshire County, New Hampshire

ZIP code 03456 is located in Marlow, New Hampshire, within Cheshire County. It covers approximately 25.98 square miles and serves a population of 803 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.

About ZIP code 03456

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $252,800. Owner-occupancy is high at 89%, well above the national average.

Median household income is $103,333. 38% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 37 minutes suggests many residents work outside the immediate area.

Educational attainment is near the national average, with 27% of residents holding a bachelor's degree or higher.

Overall, ZIP code 03456 reflects a community defined by high homeownership and a significant Social Security-dependent population.

803

population

25.98

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

03456 ZIP code map

Cities in ZIP code 03456

Below are the cities the US Postal Service accepts for ZIP code 03456. Using any city not on this list may result in mail delivery delays.

City	Status
Marlow	Preferred

Nearby ZIP codes

03280 Washington (5.7 mi) 03448 Gilsum (7.4 mi) 03602 Alstead (7.8 mi) 03605 Lempster (8 mi) 03445 Sullivan (8.2 mi) 03601 Acworth (9.7 mi) 03440 Antrim (10.7 mi) 03431 Keene (11.6 mi) 03752 Goshen (12.1 mi) 03608 Walpole (12.2 mi) 03244 Hillsborough (12.4 mi) 03450 Harrisville (13.1 mi)

Demographics updated 05/2026

Population
Total population	803
Population density	31 / sq mi
State FIPS	33
County FIPS	005

Geography
Land area	25.98 sq mi
Water area	0.47 sq mi
Latitude	43.1261
Longitude	-72.1745
Timezone	Eastern (ET)
Area code	603

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.6%	36.3%	31.0%
$50k – $100k	29.9%	35.9%	31.2%
$100k – $200k	41.5%	22.5%	28.1%
Over $200k	3.0%	5.4%	9.7%

Demographics & statistics

803

Population

People per sq mi

47.7

Median age

$103,333

Median household income

$40,871

Per capita income

$252,800

Median home value

$1,137

Median monthly rent

88.9%

Home ownership

12.5%

Poverty rate

0.8%

Unemployment

382

Housing units

26.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	195	24.3%
18 and over	608	75.7%
65 and over	198	24.7%
Median age	47.7 years

Race & ethnicity

White 95.7%

Hispanic or Latino 1.8%

Two or more races 1.3%

Other race 1.1%

Group	Count	%
White	783	95.7%
Hispanic or Latino	15	1.8%
Two or more races	11	1.3%
Other race	9	1.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.6%	36.3%	31.0%
$50k – $100k	29.9%	35.9%	31.2%
$100k – $200k	41.5%	22.5%	28.1%
Over $200k	3.0%	5.4%	9.7%

Under $10k 0.6%

$10k–$15k 3.8%

$15k–$25k 5.7%

$25k–$35k 7.0%

$35k–$50k 7.0%

$50k–$75k 11.5%

$75k–$100k 13.4%

$100k–$150k 34.7%

$150k–$200k 11.1%

$200k+ 5.1%

Range	% of households
Under $10k	0.6%
$10k–$15k	3.8%
$15k–$25k	5.7%
$25k–$35k	7.0%
$35k–$50k	7.0%
$50k–$75k	11.5%
$75k–$100k	13.4%
$100k–$150k	34.7%
$150k–$200k	11.1%
$200k+	5.1%
Median income	$103,333

Housing

Home values

Under $50k 1.1%

$50k–$100k 0.7%

$100k–$150k 11.5%

$150k–$200k 18.6%

$200k–$300k 27.2%

$300k–$500k 36.9%

$500k–$1M 2.2%

$1M+ 1.8%

Housing overview

Metric	Value
Median home value	$252,800
Median rent / month	$1,137
Owner occupied	88.9%
Renter occupied	11.1%
Vacant	24.7%
Single-family detached	92.1%
Large apartment buildings	0.0%
Mobile homes	5.5%
Median rooms	5.6
Avg household size (owned)	2.39

Year built

Era	%
2020 or later	0.0%
2010–2019	2.9%
2000–2009	19.4%
1990–1999	12.0%
1980–1989	17.7%
1970–1979	9.4%
1960–1969	2.6%
1950–1959	11.3%
1940–1949	2.6%
1939 or earlier	22.1%

Bedrooms

Size	% of units
No bedroom (studio)	2.2%
1 bedroom	7.7%
2 bedrooms	28.1%
3 bedrooms	47.2%
4 bedrooms	13.9%
5+ bedrooms	1.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.6%
1 vehicle	12.7%
2 vehicles	29.9%
3 or more	56.7%

Heating fuel

Fuel type	%
Electricity	8.0%
Propane / LP gas	10.8%
Fuel oil	57.0%
Wood	22.0%

Households & families

Household type	Count	%
Married-couple family	227	72.3%
Cohabiting couple	14	4.5%
Male householder, no spouse	47	15.0%
Female householder, no spouse	26	8.3%
Households with children under 18	97	30.9%
Households with seniors (65+)	122	38.9%
Average household size	2.54

Marital status

Status	Male	Female
Never married	16.5%	17.8%
Married	70.1%	73.3%
Separated	0.0%	0.0%
Widowed	2.8%	5.7%
Divorced	10.6%	3.2%

Education

Less than 9th grade 0.5%

Some HS, no diploma 1.4%

HS graduate 33.9%

Some college, no degree 22.3%

Associate's degree 15.1%

Bachelor's degree 14.6%

Graduate / professional 12.3%

Metric	%
HS diploma or higher	98.1%
Bachelor's or higher	26.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	16	7.8%
Kindergarten	3	1.5%
Elementary school	121	59.0%
High school	50	24.4%
College / grad school	15	7.3%

Employment

Industry of employment

Education & healthcare 22.7%

Manufacturing 20.0%

Retail trade 15.9%

Construction 10.7%

Arts, food & hospitality 8.8%

Transportation & utilities 5.2%

Professional & management 3.6%

Agriculture & mining 3.3%

Other services 3.3%

Finance & real estate 3.0%

Public administration 2.5%

Wholesale trade 0.5%

Information 0.5%

Occupation

Category	%
Management, business & arts	36.4%
Service	15.9%
Sales & office	18.6%
Natural resources & construction	12.1%
Production & transportation	17.0%

Employment type

Type	%
Private sector	70.1%
Government	21.4%
Self-employed	8.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	88.0%
Carpool	7.3%
Public transit	0.0%
Walk	0.0%
Work from home	3.1%
Other means	1.7%
Avg commute (minutes)	36.5

Poverty

All people 12.5%

Under 18 years 24.1%

18 and over 8.7%

Married-couple families 5.7%

Female-led households 58.3%

Income support

Source	% of households
Social Security	37.6%
Retirement income	37.3%
Supplemental Security	2.5%
Cash public assistance	0.6%
Food stamps / SNAP	3.5%

Health indicators

Condition	%
Obesity	33.2%
High blood pressure	32.7%
High cholesterol	30.2%
Diabetes	9.8%
Heart disease	6.8%
Stroke	3.0%
Asthma	11.2%
Arthritis	29.5%
Kidney disease	2.9%
Pulmonary disease	7.6%
Cancer	7.4%

Behavior / access	%
Smoking	16.8%
Binge drinking	16.6%
No physical activity	21.2%
Less than 7 hrs sleep	34.4%
Depression	23.6%
Fair or poor health	14.1%
Poor mental health	14.9%
Poor physical health	11.4%
No health insurance	11.1%
Visited doctor (checkup)	68.5%
Visited dentist	63.6%
Cholesterol screening	91.5%
Teeth loss	13.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	56	9.2%

Disability	%
Any disability	14.6%
Under 18	9.7%
18–64 years	5.9%
65 and over	37.4%

Health insurance coverage

Type	%
Private insurance	67.6%
Public insurance	41.5%
No insurance	6.6%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	761	94.8%
Spanish	2	0.3%
Other Indo-European	2	0.3%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	794	98.9%
Born in same state	790	98.4%
Born in different state	340	42.3%
Foreign born	4	0.5%
Naturalized citizen	9	1.1%
Not a US citizen	9	100.0%

Ancestry

Ancestry	Count	%
French	194	24.2%
Italian	190	23.7%
German	38	4.7%
Arab	23	2.9%
English	20	2.5%

Ancestry	Count	%
Polish	7	0.9%
Irish	4	0.5%
Norwegian	2	0.2%
Dutch	2	0.2%

Technology access

Metric	% of households
Computer access	39.1%
Internet access	96.2%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 03456

What city is ZIP code 03456 in?

ZIP code 03456 is primarily assigned to Marlow, New Hampshire.

What county is ZIP code 03456 in?

ZIP code 03456 falls within Cheshire County, New Hampshire.

Is ZIP code 03456 mostly owner-occupied?

89% of occupied units in ZIP code 03456 are owner-occupied, well above the national average.

Does ZIP code 03456 have a large retiree population?

38% of households in ZIP code 03456 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 03456 have a large veteran population?

9% of civilians in ZIP code 03456 are veterans, above the national average of ~7%.

What is the median household income in ZIP code 03456?

The median household income in ZIP code 03456 is $103,333, above the national median of ~$75,000.

What timezone is ZIP code 03456 in?

ZIP code 03456 observes the EST timezone.